D&C Red 33

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D&C Red 33
Red 33.png
Names
IUPAC name
Disodium 5-amino-4-hydroxy-3-(phenylazo)-naphthalene-2,7-disulfonate
Other names
D&C Red 33, Acid Red 33, Azo grenadine, Azo fuchsine, Acid fuchsine D, Redusol Z, Azo magenta G, Certicol Red B, Fast acid magenta, Hexalan Red B, Acetyl Red B, Naphthalene Red B, C.I. 17200
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.020.597
Properties
C16H11N3Na2O7S2
Molar mass 467.38 g·mol−1
Appearance Dark reddish brown powder
Melting point decomposes below the melting point
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

D&C Red 33 also known as Acid Red 33 or simply Red 33 is a red azo dye used as a colorant in mouthwashes, dentifrices, cosmetics, and hair dyes.[1] Red 33 is a disodium salt of 5-amino-4-hydroxy-3-(phenylazo)-2,7-naphthalenedisulfonic acid.

References[edit]

  1. ^ D&C Red #33 (CI 17200) at Household Products Database